It would be interesting to see these figures for last Friday 26th October ?
As you are probably aware this is the only Top 20 list I can find floating around dated 28 March 2018 ... note that although Mark Kerr is a Sub Holder at 7.341%, these holdings are split between a few entities / family members so some of these are featured separately in the top 20 list. Items 3, 6 and 16 in this case.